<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <link rel="stylesheet" href="css/style.css">
</head>

<body>
  <div id="map"></div>
  <div class="fangxiang">
    <span class="up">上</span>
    <span class="down">下</span>
    <span class="left">左</span>
    <span class="right">右</span>
  </div>
  <script src="js/index.js"></script>
</body>

</html>